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dc.contributor.authorBryan, Marta L.
dc.contributor.authorAlsubai, Khalid A.
dc.contributor.authorLatham, David W.
dc.contributor.authorParley, Neil R.
dc.contributor.authorCameron, Andrew Collier
dc.contributor.authorQuinn, Samuel N.
dc.contributor.authorCarter, Joshua A.
dc.contributor.authorFulton, Benjamin J.
dc.contributor.authorBerlind, Perry
dc.contributor.authorBrown, Warren R.
dc.contributor.authorBuchhave, Lars A.
dc.contributor.authorCalkins, Michael L.
dc.contributor.authorEsquerdo, Gilbert A.
dc.contributor.authorFuresz, Gabor
dc.contributor.authorJorgensen, Uffe Grae
dc.contributor.authorHorne, Keith D.
dc.contributor.authorStefanik, Robert P.
dc.contributor.authorStreet, Rachel A.
dc.contributor.authorTorres, Guillermo
dc.contributor.authorWest, Richard G.
dc.contributor.authorDominik, Martin
dc.contributor.authorHarpsoe, Kennet B. W.
dc.contributor.authorLiebig, Christine
dc.contributor.authorCalchi Novati, Sebastiano
dc.contributor.authorRicci, Davide
dc.contributor.authorSkottfelt, Jesper F.
dc.identifier.citationBryan , M L , Alsubai , K A , Latham , D W , Parley , N R , Cameron , A C , Quinn , S N , Carter , J A , Fulton , B J , Berlind , P , Brown , W R , Buchhave , L A , Calkins , M L , Esquerdo , G A , Furesz , G , Jorgensen , U G , Horne , K D , Stefanik , R P , Street , R A , Torres , G , West , R G , Dominik , M , Harpsoe , K B W , Liebig , C , Calchi Novati , S , Ricci , D & Skottfelt , J F 2012 , ' Qatar-2 : a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit ' , Astrophysical Journal , vol. 750 , no. 1 , 84 .
dc.identifier.otherORCID: /0000-0002-8863-7828/work/58531426
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996743
dc.descriptionG.F. acknowledges financial support from the Hungarian OTKA-NFU Mobility grant MB08C 81013. C.L. acknowledges the Qatar Foundation for support from QNRF grant NPRP-09-476-1-078. D.R. (boursier FRIA) acknowledges support from the Communauté française de Belgique—Actions de recherche concertées—Académie universitaire Wallonie-Europe.en
dc.description.abstractWe report the discovery and initial characterization of Qatar-2b, a hot Jupiter transiting a V = 13.3 mag K dwarf in a circular orbit with a short period, P b = 1.34 days. The mass and radius of Qatar-2b are M P = 2.49 M J and R P = 1.14 R J, respectively. Radial-velocity monitoring of Qatar-2 over a span of 153 days revealed the presence of a second companion in an outer orbit. The Systemic Console yielded plausible orbits for the outer companion, with periods on the order of a year and a companion mass of at least several M J. Thus, Qatar-2 joins the short but growing list of systems with a transiting hot Jupiter and an outer companion with a much longer period. This system architecture is in sharp contrast to that found by Kepler for multi-transiting systems, which are dominated by objects smaller than Neptune, usually with tightly spaced orbits that must be nearly coplanar.
dc.relation.ispartofAstrophysical Journalen
dc.subjectPlanetary systemsen
dc.subjectStars: individual (Qatar-2)en
dc.subjectTechniques: photometricen
dc.subjectTechniques: radial velocitiesen
dc.subjectTechniques: spectroscopicen
dc.subjectProper-motion starsen
dc.subjectLight curvesen
dc.subjectQC Physicsen
dc.subjectQB Astronomyen
dc.titleQatar-2 : a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbiten
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

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